Patent · US Active

Preparation of large ultra-thin free-standing polymer films

US10131754B2 · kind B2 · utility

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Key dates

Filing dateApr 15, 2016
Grant dateNov 20, 2018
Priority date
Expiry dateJan 27, 2037

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08J2333/12
  • WIPO fieldSurface technology, coating
  • WIPO sectorChemistry

Abstract

A method of making large ultrathin free-standing polymer films without use of a sacrificial layer includes the steps of providing a substrate, applying a polyelectrolyte material to said substrate, applying a polymer material onto said substrate and onto said polyelectrolyte material, and directly delaminating said polymer material from said substrate and said polyelectrolyte to produce the ultrathin free-standing polymer film.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.